This MR partially reverts 433b97c6 by unpinning the dependencies in
setup.py - the test suite now passes without them. LALSuite was impacted by an issue with numpy-1.20.x, but this was corrected in the lalsuite-6.82 bundle.
I also added a call to
conda list in the CI to dump the package list before running
pytest, which might help debug this sort of thing in the future.